I have a chance to purchase either a '92 or '94 model Toro Wheel Horse Garden Tractor. I have one commercial account that is taking me about 3 hours with a Toro 21". My other accounts are small and take about 30 - 40 minutes. I don't want to spend a lot of money for this account and run the risk to lose it next year and that is why I am considering these machines. I also realize they are not true commercial machines but if all goes well I will have the money to upgrade. I have access to the complete history of the machines and have spoke to the people who operated them (municipal) and have recomendations of which to buy (there are 4 in all). They have 20 hp Briggs and Stratton engines, choice of 48" or 60"deck, hydrostatic transmission, from 600 to 1000 hours and good tires. Anyone have experience with these? I am leaning towards the 48" deck (less scalping?). Or could I install a couple new rollers? Any help appreciated.